a) Write a query that finds a name, a surname, and a phone of a customer whohas an account with an amount larger than 100.000 EUR, and at least one payment tothe company IBM. Use relational algebra and relational calculus!b) Write a query in SQL that prints the ids and surnames of customers who havemore than 3 payments to the company IBM, each of them with an amount that is largerthan 2000 EUR. Customer (cid, name, surname, city, address, phone);Account (aid, cid, amount, created, comment);Payment (pid, payer_aid, ref_num, vend_aid, vend_com, amount, date);Transfer (tid, from_aid, to_aid, cid, amount, date, descr);

a)Relational Algebra:π_{name, surname, phone}: Projects (selects) only the name, surname, and phone…

Answered: a) Write a query that finds a name, a…

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 5HOA: Access path A database table is composed of records and fields hold data. Data is stored in records....

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Similar questions

Customer ={idC(PK), surname} Contract ={idC(PK), customer, consultant, insurance_type, date} Consultant means: id of some Staff member Staff={idPerson(PK), surname,dob, boss, email} Dob means: date of birth, boss: is id of another Staff member supervisor Insurance_Type={idT(pk) , Tname , price , length } Length = number of months it is valid (from the date when it was bought ) Find consultants born after some contract was already signed?
Relation: Relation is a two-dimensional table in which data is named. The relations have the named columns and numbers which denote the unnamed rows. Although relation is defined as the two-dimensional table of data, not all the tables are considered as relations. There are some properties that differentiate relation tables from non-relation tables.
A Bank has many customers. Attribute for customer includes customer number, name, address (street, city, state and zip code), sex and date of birth. Customer can have multiple accounts. The bank does not allow join account (one account per customer). Type of account offer by the bank are Saving, Current and Fixed Deposit. Attribute for account are account no, account type, and account balance. Each of the account can only exist in a particular branch. Attribute for branch are branch no, branch name and address (street, city, state and zip code). Customer can open different account at different branch. Draw an ER diagram for the above situation. Identify the entity, attributes, primary key, relationship and multiplicity constraint in the ER diagram.
Design your application's/organization's database. You need to create the 3 tables for each of the services offered. You must provide at least 5 examples in each of the table. There must be a table in which you have prices linked to the services you are providing. THIS IS THE NAME & DESCRIPTION OF THE ORGANIZATION FOR WHICH YOU NEED TO CREATE 3 TABLES FOR EACH SERVICE PROVIDED *Name of the Organization* :: ECOHUB *Description of the Organization* :: EcoHub is a sustainability-focused organisation that seeks to encourage environmentally friendly behaviours, increase public knowledge of environmental problems, and offer solutions for people, organisations, and communities to reduce their carbon footprint and help make the world a greener place. We think that many little individual actions can have a big influence on the environment when taken together. *Services Offered by the Organization are*1. EcoConsultancy : We provide individualised eco-consultancy services to people and…
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Each publisher has a unique name; a mailing address and telephone number are also kept on eachpublisher. A publisher publishes one or more books; a book is published by exactly one publisher. Abook is identified by its ISBN, and other attributes are title, price, and number of pages. Each book iswritten by one or more authors; an author writes one or more books, potentially for differentpublishers. Each author is uniquely described by an author ID, and we know each author's name andaddress. Each author is paid a certain royalty rate on each book he or she authors, which potentiallyvaries for each book and for each author. An author receives a separate royalty check for each book heor she writes. Each check is identified by its check number, and we also keep track of the date andamount of each check.TasksDesign a SQL database using the above US superstore sales data set.1.Use Visual Paradigm to draw conceptual diagram2.Use Visual Paradigm todraw ERD
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